Geetanjali Thapa, a National Award-winning actress, hails from:

Sikkim
Assam
Nepal
West Bengal

Geetanjali Thapa is a National Award-winning actress from Nepal. She has starred in several films, including “White Sun” (2009), “Season’s Greetings” (2011), and “Lipstick Under My Burkha” (2017). She is known for her powerful performances and her ability to portray complex characters.

Sikkim is a state in northeastern India. It is bordered by Bhutan to the north, China to the east, Nepal to the west, and West Bengal to the south. The capital of Sikkim is Gangtok.

Assam is a state in northeastern India. It is bordered by Bhutan to the north, Arunachal Pradesh to the northeast, Nagaland to the east, Manipur to the southeast, Mizoram to the south, Tripura to the southwest, Meghalaya to the west, and West Bengal to the northwest. The capital of Assam is Dispur.

Nepal is a landlocked country in South Asia. It is bordered by China to the north and India to the south, east, and west. The capital of Nepal is Kathmandu.

West Bengal is a state in eastern India. It is bordered by Bhutan to the north, Sikkim to the northeast, Assam to the east, Jharkhand to the south, Odisha to the southwest, and Bihar to the west. The capital of West Bengal is Kolkata.

To answer the question, we can eliminate options (a), (b), and (d) because Geetanjali Thapa is not from Sikkim, Assam, or West Bengal. She is from Nepal. Therefore, the correct answer is (c).